KingMath
← All CE1 · age 7 exercises

Number bonds to 100

Find how much you need to add to reach 100.

🔍 Step 1 · Understand

First, look at a worked example

How much do you need to add to 41 to make 100?

💡 The tip : First go from 41 up to 50.

🤔 Find the answer in your head, then open the solution.

👀 See the solution

Answer: 59

41 + 9 = 50, then 50 + 50 = 100. We added 9 + 50 = 59.

🎯 Step 2 · Your turn!

10 questions. Take your time, and ask for a hint if you get stuck.